TileCal is the hadronic calorimeter of the ATLAS detector that is operating at CERN. The
main task of the TileCal Detector Control System (DCS) is to enable the coherent and safe
operation of the detector. All actions initiated by the operator and all errors, warnings, and
alarms concerning the hardware of the detector are handled by DCS. The logical structure of
the TileCal DCS is subdivided in functional blocks, following a functional criteria, structured
in a tree-like way where all the functional blocks can run autonomously. The system
comprises the following functional blocks: the low voltage power supplies (LVPS), the high
voltage (HV) and the cooling of the electronics. We report the result of four years of work
dedicated to the TileCal DCS design, development, installation, testes and its integration
into ATLAS detector operation.
Also reported is the study done for the optimization validation of the Local Hadronic
Calibration using the data from the combined test-beam in the year 2004 at CERN. The
combined test-beamconsisted on exposing a fully instrumented slice of the ATLAS detector
to particle beams fromthe SPS (Super Proton Synchrotron). The results of themeasurements
of the response of the hadronic Tile calorimeter to pionswith energy in the range 2 to 230 GeV
using the Local Hadron Calibration schema are reported. The linearity and the resolution of
the calorimeter were determined and compared to previous results and to the predictions of
a simulation program using the toolkit Geant4.